Question

The body of acorn worms can be divided as

• A. Anterior proboscis
• B. Intermediate collar
• C. Posterior trunk
• D. All of the above

Answer 1

Answer: (D)

All of the above

Acorn worms is a hemichordate. They are closely related to echinoderms. They are solitary worm-shaped organisms. They can be traced in burrows and are deposit feeders, but some species are pharyngeal filter feeders.

The body of acorn worms is worm-shaped and divided into an anterior proboscis, an intermediate collar, and a posterior trunk. The proboscis is a muscular and ciliated organ used in locomotion and in the collection and transport of food particles. The mouth is located between the proboscis and the collar. The trunk is the longest part of the animal.

So, the correct answer is option D.